The effects of temperature,shearing rate,angular frequency,molecular weight and molecular weight distribution on the rheological behavior were discussed.The resultsshowed that the molecular weight and its distribution of the polymer inferred from ...

研究表明，從穩(wěn)態(tài)和動態(tài)測得的流變曲線求得的4種PP切片的分子量及其分布指數(shù)是同落球粘度法與熔融指數(shù)法相結(jié)合求得的分子量分布指數(shù)相吻合的91九色国产。

Strike-slipping shearing at the margin of Archean craton during late Archean to early Proterozoic.

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In fact, thefriction force is created by two asliects: one is the fluid shearing stress , the second is the shearingeffect of the asperities between the surfaces.

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It was also observed that the rougher asperities damaged gradually by shearing and wearing in small region and the surface in contact increases with the increasing of normal stress and shear displacement.

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Apart from these, another conclusion was drown by the author that the increase of surface energy due to the deformation after the adhesion shearing at the asperities and the viscoelasticity of polymer films is the main reason why the friction coefficients of polymer films vary with the sliding speed.

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In this paper, the particle breakage rule and breakage energy are studied during triaxial shearing, on which the associated equation is established.

論文根據(jù)堆石料的三軸試驗成果，研究了粗粒土三軸剪切過程中的顆粒破碎規(guī)律和破碎耗能亚洲黄色网站在线观看免费，提出了相關(guān)計算公式99操逼免费视频。

The main processing equipment imported from Japan has automatic volume control machines, Swiss CNC bending machine, CNC shearing machine, CNC machine tools and other mechanical processing equipment.

主要加工設(shè)備有日本進口自動卷管機、瑞士產(chǎn)數(shù)控折彎機中国AV黄色网站在线看、數(shù)控剪板機在线免费播放麻豆、數(shù)控機床等機械加工設(shè)備。

Through statistical analysis of the rock mechanic properties of upper Jurassic and Cretaceous red mudstones, siltstones and sandstones in the middle Sichuan Red Basin, the range of their compressive strength, the features of the shearing strength and of the deformation curves are proposed in this paper.

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The experiments show that the algorithm can assure good imperceptibility for watermarked image and the watermark embedded using the algorithm has good fragility against the attacks such as JPEG compression, image shearing and transforming, and beseem to region and integrality authentication for image.

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